So my brother in law is starting to creep my out... he's a nice guy but he's just been doing things that make me uncomfortable...

Here's some background.. husband works 7-5pm every day so he's barley every home.. and my sister works most week days until 10-4 or 3-9.. my brother in law is currently unemployed and taking online college classes.. I am taking college classes as well... they just moved to the area and didn't have Wi-Fi at their house so he would come over and use ours... which I didn't mind because he would just be on his lap top and I'd be doing my things.

Well apparently he has a foot fetish(that's probably spelt wrong) one day he texted me (pics below) I was with my sister & we were both confused.. she called him & told him it was creepy...

So they finally got Wi-Fi at their house but he still asks to come to our house to "study & chill" he says "I don't like being alone and it's so quite at my house"... well I think nothing of it and tell him I'm going to be leaving in an hour to meet my husband for lunch but he can still come if he wants.. he literally comes 15 mins before I leave and stayed the whole time I was gone (11am-2pm)... when I got home i did laundry and dishes then I sat down to watch tv and paint my toe nails.. then he says he's going to take a break and comes and sits right next to me on the floor... I got up to casually check the laundry, (because this isn't the first time this has happen).. 10 min later when I come back I sit on the opposite side of the room and continue to paint my nails he scoots over to sit by me again & starts to tickle my one foot I'm not painting... then his phone goes off and he gets up to get it, it's my sister!! I'm relieved but then he comes back while he's on the phone and starts to tickle my feet again!! Right then the washer goes off so I go to put them in the dryer.. I try to get out of it as much as I can but he is always trying to touch my feet!! And I'm not talking about a tickle tickle it's like a soft bearly rub touching my feet with is finger!! He even asked me once if he could tickle them!!

Some other things that creep me out.. we will have movie nights and I will be on one couch with my husband and my sister & him on the other.. well I can feel him staring at my feet and me, then when I look over that him he still continues to stare!!

I've told my husband I'm starting to feel uncomfortable with him he kinda just shrugged it off, he told me "when he asks you to come over just tell him no." Which I would but sometimes he doesn't even ask, he just shows up!

I feel uncomfortable with him and idk what to do, let me remind you that this hasn't just happened once! It's happened multiple times!!

Please give me some advice on how to resolve this situation!! (Sorry for any grammar, spelling errors, etc)

Update: Let me be more clear he's a really nice guy, I think he just doesn't understand that it creeps me out.. I just don't know how to tell him or my sister that it's inappropriate.